CN104795891A - Intelligent main transformer online monitoring system in distribution line - Google Patents
Intelligent main transformer online monitoring system in distribution line Download PDFInfo
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- CN104795891A CN104795891A CN201510108166.XA CN201510108166A CN104795891A CN 104795891 A CN104795891 A CN 104795891A CN 201510108166 A CN201510108166 A CN 201510108166A CN 104795891 A CN104795891 A CN 104795891A
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- main transformer
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- distribution line
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S40/00—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them
- Y04S40/12—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment
- Y04S40/126—Systems for electrical power generation, transmission, distribution or end-user application management characterised by the use of communication or information technologies, or communication or information technology specific aspects supporting them characterised by data transport means between the monitoring, controlling or managing units and monitored, controlled or operated electrical equipment using wireless data transmission
Abstract
The invention discloses an intelligent main transformer online monitoring system in a distribution line. The intelligent main transformer online monitoring system in the distribution line comprises a sensor signal collection system which is connected with a plurality of sensors; every sensor at least comprises a vibration sensor and a temperature sensor which are installed on a main transformer outer container, a pressure sensor which is arranged on a main transformer oil tank and a sound sensor which is arranged close to a main transformer; the sensor signal collection system is formed by a main controller which is formed by microprocessors and a peripheral circuit; the main controller collects signals collected by the sensors, converts the signals to be data and transmits the data to an A8 upper computer which is for real-time monitoring; the intelligent main transformer online monitoring system also comprises a harmonic wave meter which is accessed to three-phase voltage and samples voltage signals; the harmonic wave meter is provided with a wireless communication module which performs wireless transmission of the voltage data to the A8 upper computer. The intelligent main transformer online monitoring system in the distribution line has the advantages of being reasonable in structural composition, convenient, reliable and safe to use, allowing real-time monitoring, being sensitive in monitoring, achieving safe operation of distribution lines and the like.
Description
Technical field
What the present invention relates to is a kind of for main transformer intelligent online monitoring system in distribution line, belongs to the safety monitoring technology field of controller switching equipment.
Background technology
The safe operation of distribution line is the basis ensureing all trades and professions safety utilization of electric power, and the safe operation of distribution line depends on the normal work of controller switching equipment, due to controller switching equipment, overload operation as long-term in transformer, once break down, the safe operation of distribution line certainly will be affected, for this reason, online monitoring is carried out to controller switching equipment, especially main transformer, be conducive to the operation working condition that power department understands main transformer in time, for reduction accident rate, minimizing accident maintenance time provide reliable guarantee.
Summary of the invention
The object of the invention is to overcome the deficiency that prior art exists, and provide a kind of structure to form rationally, easy to use and reliable, safety, can Real-Time Monitoring and sensitive monitoring, realize main transformer intelligent online monitoring system in the distribution line of distribution line safe operation.
The object of the invention is to have come by following technical solution, main transformer intelligent online monitoring system in a kind of distribution line, this system comprises the collecting sensor signal system that is connected with multiple sensors, described transducer at least comprises the vibrating sensor, the temperature sensor that are arranged on main transformer outer container, be positioned over the pressure sensor of main transformer fuel tank, be placed in the sound transducer near main transformer; The master controller that described collecting sensor signal system is made up of microprocessor and peripheral circuit form, and this master controller becomes transmission data by the various signals collecting each transducer collection, upload the A8 host computer in supplying monitoring in real time; Described system also comprises an access three voltages, carries out sampling harmonic meter to voltage signal, and this harmonic meter carries out the wireless transmission of voltage data with wireless communication module and A8 host computer.
The vibration signal of vibrating sensor of the present invention to be one can be by range 0-10mm/s directly changes the CZ891 vibrating sensor of 4-20mA output current signal into, and the current signal of vibration is become the transmission data of vibration by described collecting sensor signal system by AD sampling;
Described temperature sensor is at least the temperature signal of collection directly can be become digital signal by road DS18B20 digital temperature sensor through AD conversion, and described collecting sensor signal system directly reads the digital signal of temperature by an I/O interface and become the transmission data of temperature;
Described pressure sensor is can be the 20B-10MPIG pressure sensor that the pressure signal of 0-10Mpa directly changes 4-20mA output current signal into by range, and the current signal of pressure is become the transmission data of pressure by described collecting sensor signal system by AD sampling;
Described sound transducer is a WST60M noise transducer that voice signal can be directly changed into noisy digit signal by AD, and described collecting sensor signal system to be connected with the communication of described WST60M noise transducer by a serial connection mouth and to read the digital signal of noise and become the transmission data of noise;
Described collecting sensor signal system selects STM32F103 microprocessor as master controller, and this master controller is connected to the A8 host computer that various transmission data upload can be received by serial connection mouth.
It is core that described harmonic meter mainly comprises a STM32 processor, this STM32 processor is respectively arranged with voltage input end and current input terminal by ATT7022 computation chip, and described STM32F103 microprocessor is connected to respectively wireless communication module, keyboard display module one MODBUS communication module.
Collecting sensor signal system of the present invention be also connected with at least one be arranged near main transformer, the heat that toy moves to control low and high level change can be responded to release infrared sensor, described collecting sensor signal system acquisition heat releases the low and high level signal that infrared sensor produces, and monitors by the change formation toy of this low and high level signal the A8 host computer transmitting data upload and receive;
Described temperature sensor has two-way, and wherein the setting of main transformer outer container is close to by a temperature sensor, to gather the temperature of main transformer outer container; Another road is arranged on the wall bushing of main transformer, to gather the temperature of terminal box;
Described harmonic meter is installed in a switch cubicle.
What A8 host computer of the present invention was selected is a kind of AM335X microprocessor based on ARMcortex-A8, with the SD card being greater than 2G, it connects the liquid crystal display that can show various data in real time by parallel data grabbing card, respectively connected GPRS module and RF module by dual serial mouth, and send note to corresponding with SIM card terminating machine by described at least one GPRS module; Described A8 host computer and collecting sensor signal system are all installed in a monitoring box body, and the front of described monitoring box body is provided with described liquid crystal display.
The present invention is mainly for the deficiency of traditional transformer failure diagnosis aspect, particularly to the problem of non-hot stall and the unconspicuous thermal fault detection difficulty of early stage heating, the vibration signal analyzing transformer body itself is adopted to judge whether transformer exists incipient fault; Transducer can be organized by installing on oil tank of transformer more, realize sampling to the vibration acceleration signal of transformer oil box top, bottom, front, side, ambient noise signal, monitor the voltage harmonic content that the temperature of transformer and transformer export simultaneously, realize deformation of transformer winding, loosen, the real time on-line monitoring of the internal fault such as core slackness.
The present invention installs simply, sensitive monitoring, once transformer occurs abnormal, namely GPRS module in device sends the information such as transformer alarm status, fault type and fault time in time to the background system (or mobile phone) of setting, so that attendant's Timeliness coverage, eliminating transformer fault hidden danger, improve the power supply quality of electrical network.
The present invention has structure composition rationally, easy to use and reliable, safety, can Real-Time Monitoring and sensitive monitoring, realizes the features such as distribution line safe operation.
Accompanying drawing explanation
Fig. 1 is structure of the present invention composition schematic diagram.
Fig. 2 is collecting sensor signal system principle diagram of the present invention.
Fig. 3 is the theory diagram of harmonic meter of the present invention.
Fig. 4 is the theory diagram of A8 host computer of the present invention.
Embodiment
Below in conjunction with accompanying drawing, the present invention will be described in detail: shown in Fig. 1,2, main transformer intelligent online monitoring system in a kind of distribution line of the present invention, this system comprises the collecting sensor signal system 1 that is connected with multiple sensors, described transducer at least comprises the vibrating sensor 3, the temperature sensor 4 that are arranged on main transformer 2 outer container, be positioned over the pressure sensor 5 of main transformer fuel tank, be placed in the sound transducer 6 near main transformer; The master controller that described collecting sensor signal system 1 is made up of microprocessor and peripheral circuit form, and this master controller becomes transmission data by the various signals collecting each transducer collection, upload the A8 host computer 7 in supplying monitoring in real time; Described system also comprises an access three voltages, carries out sampling harmonic meter 8 to voltage signal, and this harmonic meter 8 carries out the wireless transmission of voltage data with wireless communication module 9 and A8 host computer 7.
Shown in figure, the vibration signal of vibrating sensor 3 of the present invention to be one can be by range 0-10mm/s directly changes the CZ891 vibrating sensor of 4-20mA output current signal into, and the current signal of vibration is become the transmission data of vibration by described collecting sensor signal system 1 by AD sampling;
Described temperature sensor 4 is at least the temperature signal of collection directly can be become digital signal by road DS18B20 digital temperature sensor through AD conversion, and described collecting sensor signal system 1 directly reads the digital signal of temperature by an I/O interface and become the transmission data of temperature;
Described pressure sensor 5 is can be the 20B-10MPIG pressure sensor that the pressure signal of 0-10Mpa directly changes 4-20mA output current signal into by range, and the current signal of pressure is become the transmission data of pressure by described collecting sensor signal system 1 by AD sampling;
Described sound transducer 6 is a WST60M noise transducer that voice signal can be directly changed into noisy digit signal by AD, and described collecting sensor signal system 1 to be connected with the communication of described WST60M noise transducer by a serial connection mouth and to read the digital signal of noise and become the transmission data of noise;
Described collecting sensor signal system 1 selects STM32F103 microprocessor as master controller, and this master controller is connected to the A8 host computer that various transmission data upload can be received by serial connection mouth.
Shown in Fig. 3, it is core that described harmonic meter 8 mainly comprises a STM32 microprocessor 10, this STM32 microprocessor 10 is respectively arranged with voltage input end 12 and current input terminal 13 by ATT7022 computation chip 11, and described STM32F103 microprocessor 10 is connected to respectively wireless communication module 9, keyboard display module 14 and a MODBUS communication module 15.
In Fig. 3, electric current and voltage input 12,13 carries out three road voltage inputs and three road electric current inputs, entered dividing potential drop laggard enter computation chip 11, computation chip 11 can calculate the numerical value such as electricity, electric energy, and data are sent in STM32 microprocessor 10, by these STM32 microprocessor processes core calculations voltage, electric current, power, electric energy etc., and harmonic content value, and numerical value is shown.Wireless communication module 9 is for wireless telecommunications, and far-end can inquire about relevant electricity or energy value according to certain stipulations by the mode of wireless telecommunications.
Described collecting sensor signal system 1 be also connected with at least one be arranged near main transformer 2, the heat that toy moves to control low and high level change can be responded to release infrared sensor 16, described collecting sensor signal system 1 gathers the low and high level signal that heat releases infrared sensor 16 generation, and forms by the change of this low and high level signal the A8 host computer 7 that toy monitoring transmits data upload reception;
Described temperature sensor 4 has two-way, and wherein the setting of main transformer 2 outer container is close to by a temperature sensor 4, to gather the temperature of main transformer 2 outer container; Another road is arranged on the wall bushing of main transformer 2, to gather the temperature of terminal box;
Described harmonic meter 8 is installed in a switch cubicle 17.
Shown in Fig. 4, what described A8 host computer 8 was selected is a kind of AM335X microprocessor based on ARMcortex-A8, with the SD card 18 being greater than 2G, it connects the liquid crystal display 23 that can show various data in real time by parallel data grabbing card, respectively connected GPRS module 20 and RF module 21 by dual serial mouth 19, and send note to corresponding with SIM card terminating machine by described at least one GPRS module 20; Described A8 host computer 8 and collecting sensor signal system 1 are all installed in a monitoring box body 22, and the front of described monitoring box body 22 is provided with described liquid crystal display 23.
Embodiment: shown in Fig. 1-3, collecting sensor signal system of the present invention mainly with STM32F103 microprocessor for core, its dominant frequency up to 72MHZ, the data of Real-time Collection vibration, pressure, infrared, temperature, noise transducer, and be uploaded to A8 master system.The performance that STM32 is superior and abundant system resource, ensure that expansion and the Real-Time Monitoring of rapidly and efficiently operation and the several functions of whole system.
Major function:
1. a road mechanical oscillation monitoring (adopting vibrating sensor to be arranged on the outer container of main transformer).The vibration signal being 0-10mm/s by range by CZ891 vibrating sensor directly changes the current signal that 4-20mA exports into, and collecting sensor signal system STM32F103 is come in data acquisition by AD sampling, is uploaded to A8 system and realizes Real-Time Monitoring.
2. a road outer container temperature monitoring (0-100 degree adopts temperature sensor).By DS18B20 digital temperature sensor, temperature signal is directly transformed into digital signal by AD conversion, collecting sensor signal system STM32F103 only need read outer container temperature information by 1 I/O mouth, is uploaded to A8 system and realizes Real-Time Monitoring.
3. a road terminal box temperature monitoring (0-100 degree adopts temperature sensor).By DS18B20 digital temperature sensor, temperature signal is directly transformed into digital signal by AD conversion, collecting sensor signal system STM32F103 only need read chest temperature information by 1 I/O mouth, is uploaded to A8 system and realizes Real-Time Monitoring.
4. a road wall bushing temperature detection (0-100 degree, conductor overheating expands and causes insulating barrier to damage).By DS18B20 digital temperature sensor, temperature signal is directly transformed into digital signal by AD conversion, collecting sensor signal system STM32F103 only need read wall bushing temperature information by 1 I/O mouth, is uploaded to A8 system and realizes Real-Time Monitoring.
5. a road noise monitoring (employing sound transducer).By WST60M noise transducer, noise signal is become digital signal by AD conversion.Collecting sensor signal system STM32F103, by 1 serial ports and the communication of WST60M noise transducer, reads noise data, is uploaded to A8 system and realizes Real-Time Monitoring.
6. a road binders case pressure monitoring (needing transformer manufacturer to provide the installation site of pressure sensor).The pressure signal being 0-10MPa by range by 20B-10MPIG pressure sensor directly changes the current signal that 4-20mA exports into, and collecting sensor signal system STM32F103 is come in data acquisition by AD sampling, is uploaded to A8 system and realizes Real-Time Monitoring.
7. toy monitoring near a road main transformer (adopting heat to release infrared sensor monitoring).Respond to toy by infrared sensor BK-P02C and move the change controlling low and high level, collecting sensor signal system STM32F103 determines whether toy by the change gathering this low and high level, and information is uploaded to A8 system.
Transducer acquisition system has also reserved 3 road temperature monitorings and 3 road infrared monitoring functions in addition.
A8 systemic-function:
When a, above-mentioned monitoring abnormal (exceeding set point), send short messages to Utilities Electric Co. (employing SIM card) by GPRS;
B, above-mentioned Monitoring Data can leave in SD card, and staff can pull up SD card, analyze in data importing to computer;
C, FIRD patrol and examine bidirectional recognition.
Harmonic meter function: three-phase voltage 31 subharmonic monitoring (adopting existing digital multi harmonic wave instrumental technique).By the harmonic content that harmonic meter monitoring transformer exports.
Described harmonic meter is a PD6804Z-9SYD installing type digital network electrical measuring instrument, it is 32 high-performance treatments chips based on STM32 and special computation chip, wireless communication module, can realize high accuracy and measure all conventional parameters of electric power in real time: three-phase voltage, three-phase current, active power, reactive power, frequency, power factor, active energy, reactive energy, four-quadrant electric energy etc.
Claims (5)
1. main transformer intelligent online monitoring system in a distribution line, this system comprises the collecting sensor signal system that is connected with multiple sensors, it is characterized in that: described transducer at least comprises the vibrating sensor, the temperature sensor that are arranged on main transformer outer container, be positioned over the pressure sensor of main transformer fuel tank, be placed in the sound transducer near main transformer; The master controller that described collecting sensor signal system is made up of microprocessor and peripheral circuit form, and this master controller becomes transmission data by the various signals collecting each transducer collection, upload the A8 host computer in supplying monitoring in real time; Described system also comprises an access three voltages, carries out sampling harmonic meter to voltage signal, and this harmonic meter carries out the wireless transmission of voltage data with wireless communication module and A8 host computer.
2. main transformer intelligent online monitoring system in distribution line according to claim 1, is characterized in that:
The vibration signal of described vibrating sensor to be one can be by range 0-10mm/s directly changes the CZ891 vibrating sensor of 4-20mA output current signal into, and the current signal of vibration is become the transmission data of vibration by described collecting sensor signal system by AD sampling;
Described temperature sensor is at least the temperature signal of collection directly can be become digital signal by road DS18B20 digital temperature sensor through AD conversion, and described collecting sensor signal system directly reads the digital signal of temperature by an I/O interface and become the transmission data of temperature;
Described pressure sensor is can be the 20B-10MPIG pressure sensor that the pressure signal of 0-10Mpa directly changes 4-20mA output current signal into by range, and the current signal of pressure is become the transmission data of pressure by described collecting sensor signal system by AD sampling;
Described sound transducer is a WST60M noise transducer that voice signal can be directly changed into noisy digit signal by AD, and described collecting sensor signal system to be connected with the communication of described WST60M noise transducer by a serial connection mouth and to read the digital signal of noise and become the transmission data of noise;
Described collecting sensor signal system selects STM32F103 microprocessor as master controller, and this master controller is connected to the A8 host computer that various transmission data upload can be received by serial connection mouth.
3. it is core that the harmonic meter described in mainly comprises a STM32 processor, this STM32 processor is respectively arranged with voltage input end and current input terminal by ATT7022 computation chip, and described STM32F103 microprocessor is connected to respectively wireless communication module, keyboard display module one MODBUS communication module.
4. main transformer intelligent online monitoring system in distribution line according to claim 2, it is characterized in that: described collecting sensor signal system be also connected with at least one be arranged near main transformer, the heat that toy moves to control low and high level change can be responded to release infrared sensor, described collecting sensor signal system acquisition heat releases the low and high level signal that infrared sensor produces, and monitors by the change formation toy of this low and high level signal the A8 host computer transmitting data upload and receive;
Described temperature sensor has two-way, and wherein the setting of main transformer outer container is close to by a temperature sensor, to gather the temperature of main transformer outer container; Another road is arranged on the wall bushing of main transformer, to gather the temperature of terminal box;
Described harmonic meter is installed in a switch cubicle.
5. main transformer intelligent online monitoring system in the distribution line according to claim 1 or 2,3, it is characterized in that: what described A8 host computer was selected is a kind of AM335X microprocessor based on ARMcortex-A8, with the SD card being greater than 2G, it connects the liquid crystal display that can show various data in real time by parallel data grabbing card, respectively connected GPRS module and RF module by dual serial mouth, and send note to corresponding with SIM card terminating machine by described at least one GPRS module; Described A8 host computer and collecting sensor signal system are all installed in a monitoring box body, and the front of described monitoring box body is provided with described liquid crystal display.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201510108166.XA CN104795891A (en) | 2015-03-12 | 2015-03-12 | Intelligent main transformer online monitoring system in distribution line |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201510108166.XA CN104795891A (en) | 2015-03-12 | 2015-03-12 | Intelligent main transformer online monitoring system in distribution line |
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| CN104795891A true CN104795891A (en) | 2015-07-22 |
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| CN201510108166.XA Pending CN104795891A (en) | 2015-03-12 | 2015-03-12 | Intelligent main transformer online monitoring system in distribution line |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606933A (en) * | 2016-01-13 | 2016-05-25 | 中国南方电网有限责任公司超高压输电公司 | Vibration-noise-based on-line monitoring system of converter transformer |
| CN105606149A (en) * | 2015-11-12 | 2016-05-25 | 国网辽宁省电力有限公司朝阳供电公司 | Distribution transformer network management system based on Zigbee and RFID technology |
| CN106451503A (en) * | 2016-11-08 | 2017-02-22 | 温州商学院 | Three-phase unbalanced treatment device with temperature and vibration warning unit and realization method thereof |
| CN106529806A (en) * | 2016-11-08 | 2017-03-22 | 温州职业技术学院 | Three-phase unbalanced governance device with on-site vibration alarm function and realization method thereof |
| CN107015084A (en) * | 2017-05-12 | 2017-08-04 | 国网上海市电力公司 | A kind of distribution reactive power compensator analogue test platform |
| CN113467536A (en) * | 2021-04-30 | 2021-10-01 | 广西电网有限责任公司电力科学研究院 | Intelligent management system for dynamic load of transformer |
-
2015
- 2015-03-12 CN CN201510108166.XA patent/CN104795891A/en active Pending
Non-Patent Citations (1)
| Title |
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| 叶学勇等: "传感器信息融合技术在变压器短路故障在线监测中的应用", 《传感器世界》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105606149A (en) * | 2015-11-12 | 2016-05-25 | 国网辽宁省电力有限公司朝阳供电公司 | Distribution transformer network management system based on Zigbee and RFID technology |
| CN105606933A (en) * | 2016-01-13 | 2016-05-25 | 中国南方电网有限责任公司超高压输电公司 | Vibration-noise-based on-line monitoring system of converter transformer |
| CN106451503A (en) * | 2016-11-08 | 2017-02-22 | 温州商学院 | Three-phase unbalanced treatment device with temperature and vibration warning unit and realization method thereof |
| CN106529806A (en) * | 2016-11-08 | 2017-03-22 | 温州职业技术学院 | Three-phase unbalanced governance device with on-site vibration alarm function and realization method thereof |
| CN107015084A (en) * | 2017-05-12 | 2017-08-04 | 国网上海市电力公司 | A kind of distribution reactive power compensator analogue test platform |
| CN113467536A (en) * | 2021-04-30 | 2021-10-01 | 广西电网有限责任公司电力科学研究院 | Intelligent management system for dynamic load of transformer |
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Application publication date: 20150722 |